Marianne Matthias, Regenstrief Institute (IMAGE) Regenstrief Institute Caption Regenstrief Institute Investigator Marianne Matthias' research interests include relationship-centered care and its effect on health care processes and outcomes, patient-provider communication, patient activation, and clinical decision making. She is particularly interested in communication in chronic pain care and severe mental illness. Credit Regenstrief Institute Usage Restrictions Photo credit to Regenstrief Institute License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.